his most famous role was that of j.r. ewing. it was one of the most successful in history. manuel bojorquez is at the south fork ranch which served as j.r.'s television home. good morning. >> reporter: you may recall in the 1980s whenever someone talked about dallas you have to wonder whether they were talking about the tv series or the actual city in texas. and, of course everyone remembers south fork ranch as the home of the fictional ewing family. it was the cliffhanger that ended the 1980 season which everyone over a certain age will always remember. it was one of the most famous moments in television history. the world asked who shot j.r. and this morning the world mourns the loss of the actor who played j.r. ewing in the hit cbs show "dallas." larry magazine hahn has died at the age of 81. >> there we are. >> reporter: hagman rose to fame as good natured astronaut anthony nelson in the "i dream of jeanne." he came from a show business family. his mother was mary martin. hagman was candid about his personal life acknowledging years of heavy drinking that so damaged his